Improvement in indicators and gage-cocks



W. STARKEY 8v 0. P. JACKSON.

Gage-000k.

Indicator and Patented June 4,1878.

-FErm5, PHOTO-UTHOGRAFNER, WASHINGTON. D C- UNITED STATES PATENT OFFICE.

WILLIAM STARKEY AND OLIVER P. JACKSON, OF PITTSBURG, PA., ASSIGN- ORS OFONE-FOURTH THEIR RIGHT TO JOSEPH STARKEY, OF SAME PLACE.

IMPROVEMENT IN INDICATORS AND GAGE-COCKS.

Specification forming part of Letters Patent N0. 204,630, dated June 4,1878; application filed May 8, 1878.

To all whom it may concern:

Be it known that we, WILLIAM STARKEY and OLIVER P. JACKSON, ofPittsburg, in the county of Allegheny and State of Pennsylvania, haveinvented a new and useful Improvement in Indicators and Gage-Cocks; andwe do hereby declare the following to be a full, clear, concise, andexact description thereof, reference being had to the accompanyingdrawings, making a part of this specification, in which like lettersindicate corresponding parts.

Figure 1 is a vertical central sectional view of our improvement. Fig. 2is a perspective view of the same. Figs. 3, 4, 5, 6, and 7 are detailsof the same, showing the face of valve in different positions, whichwill be described as follows:

Fig. 1 is a vertical central sectional view of our improvement, which isscrewed in the end of boiler in the usual position of a gage-cock,having a valve, A, with a stem of same, extending through the chamber D,and through the hub of lever F and through the dial-plate G, having afinger on the same to show the stage of the water in boiler or boilerson the dial-plate G. On the other end of the stem A, inside the boiler,is at tached a lever, G, which connects the float B to the stem of thevalve A, which is operated as the water ascends or descends in theboiler. The valve A has a pipe, E, screwed in the side of the same,having outlets through the face of the valve A by diverging ports E andE, as shown in Fig. '3, said ports connecting alternately with passageE, and conveying steam to the whistle E when the water descends to theline of safety, also when the water ascends to the upper water-line,thus forming a high and low water indicator and signal-alarm. The lowerside of the face of the valve A is provided with slotted ports H and H,as shown inFig. 3. Said ports are placed at suitable distance apart,leaving a part of the valve-face A to cover the waterpassage H The valveA is connected to the lever F by the stem of the same, A as shown inFig. 1.

In operation, it will be seen that the indicator and signal workautomatically by the float B ascending and descending with the water inthe boiler or boilers. As the water in all boilers is liable to foam, itcan be ascertained by the action of the lever F, which will be describedin details, whether they contain solid water.

The valve A is pressed against the face of chamber D by the pressurecontained in the boilers, and is oscillated by the movement of the floatB, taking a different position according to the stage of water in theboilers. Fig. 3 shows the position of the valve when the water is at itsproper line. As the float descends in the direction of the arrow thevalve takes the position shown in Fig. 4, bringing the diverging port Ein connection with the steam-passage E, which conveys steam to thewhistle E thus sounding an alarm until the water is brought up to theline of safety. As the float ascends in the direction of the arrow tothe high-water line the valve takes the position shown in Fig. 6,bringing the opposite diverging port E in connection with thesteam-passage E, thus conveying steam to the whistle, and sounding analarm, as before described. To ascertain whether the water is solid orfoaming, move the lever F in the direction of the arrow, which causesthe float to sink in the water and brings the valve to the position asshown in Fig. 5, bringing the slot H in connection with thewater-passage H", allowing the water to escape through the same.

Reversing the lever F in the direction of the arrow brings .the valve tothe position shown in Fig. 7, raising the float B out of the water andbringing the opposite port 11 in connection with the water-passage Hdischarging water from the mouth of the same, which can be seen by theengineer, for the purpose set forth above.

Having thus described our invention, what we claim, and desire to secureby Letters Patent is- 1. In a boiler, the combination of the chamber D,pipe E, and diverging ports E and E in valve A, and passage E, whistle Elever O, and float B, giving an oscillating movement to the valve A,substantially as G, all arranged together, substantially as deset forth.scribed 2. In a boiler, the combination of the cham- In testimonythereof we hereby set our ber D and valve A, slotted ports H and Hhands. which are alternately connected with the pas- WILLIAM STARKEY.sage H by moving the lever F, answering f )r OLIVER P. JACKSON. thepurpose set forth.

3. The combination of the chamber D, valve A, lever U, float B, lever F,and dial Witnesses:

FRANCIS L. CLARK, OTTO VVIGAND, J r.

